The burden of chronic kidney disease in renal transplant recipients

Vanji Karthikeyan1, Jolanta Karpinski, Rama C Nair

  • 1Division of Nephrology, Department of Medicine, Kidney Research Centre, The Ottawa Hospital Research Institute, Ottawa, Ontario, Canada.

Insights

Chronic kidney disease (CKD) affects 90% of renal transplant recipients, with complications like anemia and hypertension increasing with CKD stage. This highlights the need for CKD staging in transplant patients to guide risk assessment and treatment.

Area of Science:

  • Nephrology
  • Transplant Medicine
  • Public Health

Background:

  • National Kidney Foundation guidelines exist for chronic kidney disease (CKD) diagnosis and staging.
  • Applicability of these CKD guidelines to renal transplant recipients remains unclear.
  • Renal transplant recipients may face unique challenges regarding kidney health post-transplantation.

Purpose of the Study:

  • To determine the prevalence of CKD in renal transplant recipients using established NKF guidelines.
  • To identify common CKD-related complications in this population.
  • To assess the relationship between CKD stage and the prevalence of these complications.

Main Methods:

  • Cross-sectional study involving 459 renal transplant recipients.
  • Classification of CKD based on National Kidney Foundation guidelines and glomerular filtration rate (GFR).
  • Analysis of CKD complications such as anemia and hypertension, correlating their prevalence with CKD stage.

Main Results:

  • A high prevalence of CKD (90%) was observed in renal transplant recipients, with 60% in Stage 3 (GFR 30-59 mL/min/1.73 m2).
  • Prevalence of anemia (0% to 33%) and hypertension (60% to 100%) significantly increased with advancing CKD stage.
  • The number of CKD complications per patient rose from 1.1 in Stage 1 to 2.7 in Stage 5.

Conclusions:

  • CKD and its associated complications are highly prevalent in renal transplant recipients.
  • Staging CKD in transplant patients, using NKF guidelines, can aid in identifying high-risk individuals.
  • Targeted therapies based on CKD stage may improve outcomes for renal transplant recipients.

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